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(No Model.) I 2 Sheets-Sheet 1.

0. VEZIN.

MULTIPLE CYLINDER STEAM ENGINE.

N0'. 600,958. Patented Mar. 22, 1898.

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(No Model.) 2 Sheets-Sheet 2.

0. VEZINQ MULTIPLE CYLINDER STEAM-ENGINE.

No. 600,958. Patented Mar. 22,1898.

WITNESSES: /NVEN7%7;

' 114.55 Aug UNITED j STATES PATENT OFFICE.

OSCAR VEZIN, OF YORK, N. Y.

MULTIPLE-CYLINDER STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 600,958, dated March 22, 1898. Application filed May 27, I897. Renewed January 25, 1898. Serial No, 667,841. (No model.)

To all whom, it may concern: Be it known that I, OSCAR VEZIN, a citizen of the United States, residing in the city of New York, county and State of New York,

to provide means for the automatic, continuous, and abundant,and also economical, lubrication of such crank-bearing.

My invention is applicable to a multiplecylinder steam-engine inwhich the cylinders are radially arranged on the engine-body about a common crank-shaft, with the arms of the several pistons of said cylinders engaging the crank within a chamber in said engine-body through which the exhaust-steam from said several cylinders passes in its escape; and my invention consists in the combination,-with the engine-body bearing the several cylinders and having the aforesaid crank-chamber, together with a crank-shaft provided interiorly with a duct leading into a duct in' the crank, with radial passages communicating with its circumference, of an auxiliary chamber communicating with the steam-exhaust aperture from the crank-chamher, having an outlet to the air and interiorly adapted to effect the separation from the water-vapor and the collection of the oil carried into said auxiliary chamber from the chambered engine-body, together with a tube leading from the lower end of said auxiliary chamber to and communicating with the duct in said crank-shaft.

In the drawings, Figure 1 is a rearward side elevation of amultiple-cylindersteam-engine containing myinvention; and Fig. 2 is a vertical section of the same on the line mm, Fig. 1.

The engine shown in the drawings is one in which the several cylinders are single-acting on their inward stroke and in which the cylinder-ports are governed 'by slide-valves those of each pair on diametrically opposite sides of the common crank-shaft. The engine-body contains the chamber a which is closed in front by the head I) and at the rear by the head I), while a partition 19 divides the chamber into two compartments, the rearward one of which constitutes the valve-chamber,

apertures a in the partition b giving com munication between the two compartments. The steam-chest a is formed in said partition. The single common crank-shaft Chas bearings in the head I) and partition 19 and its crank is located in the forward compartment of the aforesaid engine-body chamber. The several cylinders on the engine-body open inwardly into said forward compartment of said chamber, similarly to the cylinder illustrated in Fig. 2, and the respective arms of the several cylinder-pistons engage the crank c in the aforesaid forward compartment of chamher at, similarly to the arm a of piston a (Shown in Fig. 2.) Each cylinder has an inlet and exhaust port, such as shown at a, Fig.2. The cylinder and steam-chest ports, one of the latter being seen at a Fig. 2, are governed by an ordinary form of slide-valve D, operated through a rod cl, worked by an eccentric D on the crank-shaft, as illustrated in Fig. 2, and said valves may be furnished with adjustable balance-plates, (Shown at d'.)

A further description of the structure or operation of the engine illustrated in the drawings is unnecessary, as the same are well known and will be readily understood from that above given.

The shaft O and its crank c are adapted for the uses and purposes of my invention by means of a duct 0, extending longitudinally through the shaft, preferably from its rearward end, to and into the body of the crank, with passages 0 extending radially in the crank to its circumference.

In carrying out my invention I combine with the described engine-body bearing the said several cylinders and containing the chamber within which the said crank provided with the said duct plays, and through which the exhaust-steam from said several cylinders circulates, an auxiliary chamber E, the inlet 6 of which, preferably at its bottom, communicates with the exhaust-aperture a of the chamber a and the outlet of which, as at 6, preferably at its top, opens into the air, and this chamber is interiorly adapted in any well-known manner to separate from the water-vapor and to collect any oil which maybe carried by the exhaust-steam from the chamber a into said chamber E. The chamber-E may be, for the purposes stated, provided with the tube 6 extending from the inlet part way of the interior height of the chamber, a hood e placed above the upward end of said tube and extending downwardly around the same toward the chamber-bottom and between the tube and the surrounding chamber-wall, and inclined annular flanges 6 respectively arranged in series upon adjacent surfaces of the tube and hood and the hood and chamberwall, as shown.

Exhaust-steam from chamber a, entering through tube 6 will impinge upon the inner face of the top of the hood c and hence be deflected against the inner face and diffused within the depending rim of said hood, passing thence into the space between the outer face of the hood and the inner face of the chamber-wall, and the oil carried by said exhaust-steam will be deposited upon the surfaces of the hood and chamber-wall and the described inclined flanges and will flow thence to and collect in the lower part of said chamber, while the waterwapor, freed from the oil, will escape at the chamber-outlet e.

Any other known means for interiorly adapting the chamber E to effect the separation of the oil from the vapor of the exhauststeam and its collection therein may be employed in place of the particular devices herein shown and described in carrying out my present invention without material variation from the essential feature thereof. In further carrying out my invention I combine with the said chamber E, the chambered engine-body, and the shaft and crank provided with the described duct and passages a tube E, leading from the lower part, preferably at or near the bottom of said chamber E, to and communicating with the duct 0 in said crank-shaft, and in the engine shown the tube E may be extended through a suitable stuffing-box 0. in the rearward head Z) of the engine-body, into the aforesaid duct, its end resting loosely therein. An oil-cup E may be advantageously arranged to feed, if required, into the tube E.

The operation of the devices constituting the invention is as follows: lVhen the engine is initially started in motion, oil in adequate quantity is fed into the tube E, as from the cup E and passes thence into the duct 0' in shaft C and to crank c, where it is thrown out through the passages c to and lubricates the crank-bearings. As the oil escapes from the bearings into the chamber a it therein mingles with and is more or less taken up by the exhaust-steam circulating through said chamher and is thereby carried into the auxiliary chamber E. In said chamber E the oil is, as before set forth, separated from the vapor and collected in the bottom of said chamber, whence it flows through tube E into the crank-shaft duct 0 and again passes to and lubricates the crank-bearing. lVhen an adequate supply of oil has been fed into the tube E, as from the cup E as described, the supply may be cut off or reduced to an exceedingly small quantity, and the oil within the engine will pass successively from the chamber E to the crank-bearings and thence to chamber a and be therein taken up and carried more or less by the exhaust-steam into chamber E, so that the circulation of the oil within the engine will be automatic and continuous and will with economy effect the ample and uninterrupted lubrication of the crank-bearings.

I make no claim to novelty in a crank-shaft provided with a lubricator-duct; nor do I make claim to novelty in the herein-described devices for separating oil from the water-vapors of exhaust-steam; but I intend it to be understood that my invention specifically relates to a multiple-cylinder steam-engine in which the several cylinders are carried by an engine-body containing a chamber in which the crank common to the piston-arms of the several cylinder-pistons plays and into which the exhaust from said cylinders passes, and that my invention specifically consists in the combination, with such a chambered enginebody and the said shaft and crank provided with the described lubrication duct and passages, of an auxiliary chamber having an inlet communicating with the exhaust-aperture from said crank-chamber and an outlet to the air and interiorly adapted to separate from the water-vapors and to therein collect oil which may be carried thercinto by the exhaust-steam from said crank-chamber, together with a tube establishing communication between the lower part of said auxiliary chamber and said crank-shaft duct, whereby the oil for lubricating the crank-bearings will, as it escapes therefrom into the crank-chamber and is therein taken up by the exhauststeam and carried (more or less) thereby into said auxiliary chamber, wherein it is separated from the water-vapors and collected, be returned to the crank-bearings, and whereby this circulation of the oil within the enginebody will be automatically continuous and will with economy effect the uninterrupted and ample lubrication of the crank-bearings and it is to the invention comprising these features in combination that I herein make claim.

lVhat I claim as my invention, and desire to secure by Letters Patent, is

In a multiple-cylinder steam-engine comprising an engine-body bearing the several cylinders and containing a chamber in which the crank of the shaft common to all the cylinder-pistons has play, and through which the exhaust-steam from the several cylinders passes, together with the crank and its shaft provided with a lubrication duct and passages leading to the circumference of the crank, the combination'therewith of an auxiliary chamber having an inlet communicating with the exhaust-aperture of the crankcharnber and an outlet communicating with the air, and interiorly adapted to separate from the Water-vapors and therein collect oil carried thereinto from said crank-chamber OSCAR VEZIN.

Witnesses:

R0131. D. EVANS, M. F. DALY. 

